Premium
Thermodynamic analysis, parametric study and optimum operation of the Kalina cycle
Author(s) -
ROGDAKIS E. D.
Publication year - 1996
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/(sici)1099-114x(199604)20:4<359::aid-er165>3.0.co;2-s
Subject(s) - thermal efficiency , thermodynamics , work (physics) , boiler (water heating) , parametric statistics , nuclear engineering , mass fraction , exergy , power unit , process engineering , chemistry , power (physics) , mathematics , engineering , physics , combustion , statistics
The work described here has a major objectives the complete thermodynamic analysis and the parametric study of the Kalina Power Unit. The device layout optimization is based on the presentation of the unit on the T‐h and h/T ‐s thermodynamic charts. The operation of the power unit is simulated by the use of equations describing the thermodynamic behaviour of the NH 3 /H 2 O mixture. The important parameters of the unit, i.e. high, medium and low pressures/rich, weak, working solution and boiler vapour mass fraction are discussed and related. Correlations are developed which describe the optimum operation of the Kalina cycle. The maximum thermal efficiency, the heat required to drive the unit and the work produced may be directly calculated from analytical functions in terms of the ambient temperature and the low pressure of the units. The maximum theoretical efficiency ranges from 42·7% to 46·6%.